Listed tamper-resistant receptacles are required at which of the following locations?

Tamper-resistant receptacles are specifically designed to enhance safety by preventing unwanted insertion of foreign objects, particularly by children. The National Electrical Code (NEC) stipulates the locations where these receptacles must be installed through section 406.12. This section mandates the use of tamper-resistant receptacles in any dwelling unit, including residential homes, as well as in certain commercial buildings where children may be present.

The requirement applies broadly across various settings, not limited to just residential or commercial spaces, making the correct answer encompass all locations specified by the NEC. Areas such as hallways, living rooms, and playrooms, in addition to kitchens and bathrooms, are included under this safety measure, reflecting the NEC's goal to enhance electrical safety in environments frequented by children.

This focus on safety is not confined to the categories mentioned in the other options, which restrict the requirement unfairly to specific types of buildings or locations. Instead, understanding that tamper-resistant receptacles are mandated by the NEC in all relevant contexts ensures proper compliance and safety for all individuals, particularly vulnerable populations such as children.